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Beam divergence, explained by RP; angle
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Figure 1 from Physics of elliptical reflectors at large reflection and divergence angles II: Analysis of optical beam distortions in integrated ultra-large-angle elliptical curved reflectors | Semantic Scholar
Optics - How are reflectors used in LED luminaire design? How do they affect LED COB performance? – Luminus Devices
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Laser Beam Collimation
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Light Management Solutions for Lighting Applications | Luminit LLC
Beam divergence - Wikipedia
Three-mirror system design for shaping the elliptical beam of a laser diode - ScienceDirect
Gaussian beam - Wikipedia
Beam divergence
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